The conversion of phase to amplitude fluctuations of a light beam by an optical cavity
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
18/04/2012
18/04/2012
2008
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Resumo |
Very low intensity and phase fluctuations are present in a bright light field such as a laser beam. These subtle quantum fluctuations may be used to encode quantum information. Although intensity is easily measured with common photodetectors, accessing the phase information requires interference experiments. We introduce one such technique, the rotation of the noise ellipse of light, which employs an optical cavity to achieve the conversion of phase to intensity fluctuations. We describe the quantum noise of light and how it can be manipulated by employing an optical resonance technique and compare it to similar techniques, such as Pound - Drever - Hall laser stabilization and homodyne detection. (c) 2008 American Association of Physics Teachers. |
Identificador |
AMERICAN JOURNAL OF PHYSICS, v.76, n.10, p.922-929, 2008 0002-9505 http://producao.usp.br/handle/BDPI/16380 10.1119/1.2937903 |
Idioma(s) |
eng |
Publicador |
AMER ASSOC PHYSICS TEACHERS AMER INST PHYSICS |
Relação |
American Journal of Physics |
Direitos |
openAccess Copyright AMER ASSOC PHYSICS TEACHERS AMER INST PHYSICS |
Palavras-Chave | #FREQUENCY STABILIZATION #SQUEEZED STATES #QUANTUM #ENTANGLEMENT #OSCILLATIONS #Education, Scientific Disciplines #Physics, Multidisciplinary |
Tipo |
article original article publishedVersion |